From 21234a33dc5010ea430b509615dd2739a3df0acf Mon Sep 17 00:00:00 2001
From: cyang <cyang@taosdata.com>
Date: Fri, 24 Feb 2023 17:02:30 +0800
Subject: [PATCH] fix:converity scan error

---
 source/dnode/vnode/src/tq/tq.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 4281aa0df6..9bdd8f4bdf 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -1335,8 +1335,12 @@ int32_t tqProcessDelReq(STQ* pTq, void* pReq, int32_t len, int64_t ver) {
     }
   }
 
-  blockDataDestroy(pDelBlock);
-  taosMemoryFree(pRef);
+  int32_t ref = atomic_sub_fetch_32(pRef, 1);
+  /*A(ref >= 0);*/
+  if (ref == 0) {
+    blockDataDestroy(pDelBlock);
+    taosMemoryFree(pRef);
+  }
 
 #if 0
     SStreamDataBlock* pStreamBlock = taosAllocateQitem(sizeof(SStreamDataBlock), DEF_QITEM, 0);